Results 21 to 30 of about 86 (86)

Translation of: Familles de surfaces isoparamétriques dans les espaces à courbure constante, Annali di Mat. 17 (1938), 177–191, by Élie Cartan.

open access: yes, 2023
English title: Families of isoparametric surfaces in spaces of constant curvature This is an English translation of the article Familles de surfaces isoparamétriques dans les espaces à courbure constante which was originally published in Annali di ...
Cecil, Thomas E.
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Survey on real forms of the complex A2(2)-Toda equation and surface theory

open access: yesComplex Manifolds, 2019
The classical result of describing harmonic maps from surfaces into symmetric spaces of reductive Lie groups [9] states that the Maurer-Cartan form with an additional parameter, the so-called loop parameter, is integrable for all values of the loop ...
Dorfmeister Josef F.   +3 more
doaj   +1 more source

Nonexistence of mean curvature flow solitons with polynomial volume growth immersed in certain semi-Riemannian warped products

open access: yesAdvances in Nonlinear Analysis
Our purpose is to establish nonexistence results concerning complete noncompact mean curvature flow solitons with polynomial volume growth immersed in certain semi-Riemannian warped products, under mild constraints on the warping and soliton functions ...
Batista Márcio   +3 more
doaj   +1 more source

f-biharmonic and bi-f-harmonic submanifolds of generalized (k, µ)-space-forms

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
Here we have studied f-biharmonic and bi-f-harmonic submanifolds of generalized (k, µ)-space-forms and obtained a necessary and sufficient condition on a submanifold of generalized (k, µ)-space-form to be f-biharmonic and bi-f-harmonic submanifold.
Hui Shyamal Kumar   +2 more
doaj   +1 more source

Warped Product CR-Submanifolds in Lorentzian para Sasakian Manifolds [PDF]

open access: yes, 2010
2000 Mathematics Subject Classification: 53C15, 53C40, 53C42.Many research articles have recently appeared exploring existence or non existence of warped product submanifolds in known spaces (cf. [2, 5, 8]). The objective of the present paper is to study
Uddin, Siraj
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An eigenvalue estimate for self-shrinkers in a Ricci shrinker

open access: yesAdvanced Nonlinear Studies
In this paper, we study the drifted Laplacian Δf on a hypersurface M in a Ricci shrinker (M̄,g,f) $\left(\bar{M},g,f\right)$ . We prove that the spectrum of Δf is discrete for immersed hypersurfaces with bounded weighted mean curvature in a Ricci ...
Conrado Franciele, Zhou Detang
doaj   +1 more source

Minimal Maslov number of R-spaces canonically embedded in Einstein-Kähler C-spaces

open access: yesComplex Manifolds, 2019
An R-space is a compact homogeneous space obtained as an orbit of the isotropy representation of a Riemannian symmetric space. It is known that each R-space has the canonical embedding into a Kähler C-space as a real form, and thus a compact embedded ...
Ohnita Yoshihiro
doaj   +1 more source

Geometry of Warped Product Semi-Invariant Submanifolds of a Locally Riemannian Product Manifold [PDF]

open access: yes, 2009
2000 Mathematics Subject Classification: 53C42, 53C15.In this article, we have studied warped product semi-invariant submanifolds in a locally Riemannian product manifold and introduced the notions of a warped product semi-invariant submanifold.
Atçeken, Mehmet
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A Variational Approach for the Neumann Problem in Some FLRW Spacetimes

open access: yesAdvanced Nonlinear Studies, 2019
In this paper, we study, using critical point theory for strongly indefinite functionals, the Neumann problem associated to some prescribed mean curvature problems in a FLRW spacetime with one spatial dimension.
Bereanu Cristian, Torres Pedro J.
doaj   +1 more source

A note on the l^2-norm of the second fundamental form of algebraic manifolds [PDF]

open access: yes, 2010
2000 Mathematics Subject Classification: 53C42, 53C55.Let M f → CP^n be an algebraic manifold of complex dimension d and let σf be its second fundamental form. In this paper we address the following conjecture, which is the analogue of the one stated by
LOI, ANDREA, Zedda M., Zedda, Michela
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